Home / 147,684.50-203,804.70-91,128.68

Finding the Fourth Proportional to 147,684.50, 203,804.70 and 91,128.68

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Solution

The fourth proportional to 147,684.50, 203,804.70 and 91,128.68 is: 125,757.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,684.50 : 203,804.70 = 91,128.68 : x
  2. Step 2: Convert to fraction form
    147,684.50/203,804.70 = 91,128.68/x
  3. Step 3: Cross multiply
    147,684.50x = 203,804.70 × 91,128.68
  4. Step 4: Simplify right side
    147,684.50x = 18,572,453,288.80
  5. Step 5: Solve for x
    x = 18,572,453,288.80/147,684.50
  6. Step 6: Final answer
    x = 125,757.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.